The massive Main Street Bridge has become a landmark in downtown Jacksonville and was heralded as a major accomplishment when built at the end of the 1930s to carry US 1 over the St. Johns River. Made of eleven steel stringer spans and three Warren through trusses, the 365-foot long continuous truss vertical lift span at the center is the longest in Florida. The span-drive system, which puts the drive machinery on the movable span, utilizes concrete counterweights enclosed within two large steel frame towers. Although builders emphasized functional considerations, the bridge produces an aesthetic effect through its strength, 200-foot high lift towers, and commanding reach across the Saint Johns River measuring 1,680 feet in length.

The Main Street Bridge is Jacksonville's most memorable. The bright blue lift bridge opened in 1941, and today it carries about 20,000 drivers a day across US 1 between Ocean Street on the north (west) side of the river and I-95 and US 90 on the south (east) side.

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July 13th, 2013

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